Landis Retirement Cycling

Credit: AP

FILE - This July 22, 2004, file photo shows overall leader Lance Armstrong, right, straining in the ascent of the La Croix Fry pass, as teammate Floyd Landis pours water over his neck, during the 17th stage of the Tour de France cycling race between Bourg-d'Oisans and Le Grand Bornand, French Alps. .Landis has retired from professional racing, saying the battle to fix the sport's drug-tainted image is "not my fight." Landis told ESPN.com late Monday, Jan. 17, 2011, that he "spent five years trying to get back to a place that I can never really go back to, and it's causing more stress than is worth it." (AP Photo/Bernard Papon, Pool, File)